I've noticed taking interest at different times in my life, but some have always been a natural part of who I am (i.e. being idealistic, future-oriented, not living in the moment, terrible at being practical, day-dreamy). So I do share that common aspect of being a very imaginative child in my own world. I was also very good at drawing from an extremely young age and exhibited above average spatial skills in art, adept at noticing the slightest details in objects. However, I had trouble with abstract art and wasn't as creative as others who would come up with really creative ideas through their imagination. I preferred copying subjects from my external environment, so I always needed a reference. I was into more realistic forms of art growing up and looked down at anything too abstract, including the meaning behind the artwork. It wasn't until later on in my late teens when I started becoming more conceptual, and I've often wondered if this was something that came about from taking art classes in general, since we were encouraged to think outside the box.
Also, I was terrible with deciphering poetry and abstract language all throughout primary and secondary school and didn't care much for literature either. I had pretty bad reading comprehension as a child, so I'm uncertain if this could have had something to do with it too. I remember preferring straightforward language in writing because it was far easier for me to understand. I started preferring flowery language and experimental forms of writing as I've grown older and more competent in understanding them during my early twenties, as I have a thing for anything atypical and peculiar due to being easily bored with the conventional and mundane.
I define Ne separate from the average NP traits and purely as a cognitive function. More as basing the external world with various connections that immediately spring to mind. I can do this at times, but it's more sporadic and unnatural in the ways I've noticed it in others. Sometimes it takes time for me to come up with a myriad of ideas, but I'm also trying to laser in on one more often than not, which I suppose is more aligned with the concept of Ni.